package com.sean.config;

import org.springframework.amqp.core.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class RabbitConfig {
    @Bean
    public Queue queue() {
        Map<String, Object> props = new HashMap<>();
        // 消息的生存时间 5s
        props.put("x-message-ttl", 5000);
        // 设置该队列所关联的死信交换器（当队列消息TTL到期后依然没有消费，则加入死信队列）
        props.put("x-dead-letter-exchange", "ex.order.fail");
        // 设置该队列所关联的死信交换器的routingKey，如果没有特殊指定，使用原队列的routingKey
        props.put("x-dead-letter-routing-key", "order.fail");
        Queue queue = new Queue("q.order", true, false, false, props);
        return queue;
    }

    @Bean
    public Queue queueFail() {
        Queue queue = new Queue("q.order.fail", true, false, false);
        return queue;
    }

    @Bean
    public Exchange exchange() {
        DirectExchange exchange = new DirectExchange("ex.order", true, false, null);
        return exchange;
    }

    /**
     * 死信交换器
     * @return
     */
    @Bean
    public Exchange exchangeFail() {
        DirectExchange exchange = new DirectExchange("ex.order.fail", true, false, null);
        return exchange;
    }

    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queue()).to(exchange()).with("order").noargs();
    }

    /**
     * 死信交换器绑定死信队列
     * @return
     */
    @Bean
    public Binding bindingFial() {
        return BindingBuilder.bind(queueFail()).to(exchangeFail()).with("order.fail").noargs();
    }
}